Roland Mösl
2010-08-01 10:37:13 UTC
To make a compare study, the average use
of horses in the past would be very interesting:
How many m² biomass used to feed one horse
How many km a year riding a horse
How many km a year pulling vehicles?
of horses in the past would be very interesting:
How many m² biomass used to feed one horse
How many km a year riding a horse
How many km a year pulling vehicles?
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Roland Mösl
http://car.pege.org cars and traffic
http://live.pege.org building and live
http://www.pege.org
Roland Mösl
http://car.pege.org cars and traffic
http://live.pege.org building and live
http://www.pege.org